Muffler for engines or motors.



PATENTED JUNE 4, 1907.

W. A. WEBSTER.

MUFILER FOR ENGINES 0R MOTORS.

APPLICATION FILED MAR. 23, 1906.

l Tnvenfbrf if am Z V UNITED STATES PATENT OFFICE.

WILLIAM A. WEBSTER, or MoNMoU'rH, iLLiNois.

NIUFFLER FOR ENGINES OR MOTORS.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed March 23, 1906. Serial No. 307,754.

v is a specification.

Theexhaust from an engine or motor, especially from gas or gasolene engines of all kinds and particularly from those used for driving automobiles or other power vehicles or boats, or when used in an inclosed building, is exceedingly disagreeable and annoying on account of the noise produced thereby, and also on account of the smoke, gases and other vapors usually escaping from the exhaust pipe of such engines when in operation. Various attempts have been made tofkill, deaden or minimize such noise and probably to some extent to consume or destroy the smoke, gases and other vapors, with varying success.

The object of the present invention is to construct a muffler, which will kill, deaden or minimize the noise of such exhaust, and at the same time consume or destroy such smoke, gases and other vapors.

{,hThe mufiier is simple ofA construction and Canreadily be applied or attached to the exhaust pipe, without any material change in the construction or arrangement of the arts.

The invention consists, substantial y, of the features of construction and,l combination of arts hereinafter described Iand claimed.

n the drawings illustrating the invention, Figure 1. is a vertical, sectional view of the muffler made on the line X--X, as indicated in Fig. 2. Fig. 2., is a cross sectional view of the muffler made on the line iai- A, as-indicated in Fig. 1., showing part of the ring of such cross section to be broken away, thus exposing'the ring next toit with the projections thereon, and also showing the projections, on that part of the ring not broken away; Fig. 3. is a perspective view of one of p the rings, showing proJections on the face or fiat surfaces thereof.

Reference now being had to the accompanying drawings by numerals, 4. represents the exhaust pipe tov which the muffler is attached; 5, represents the open head of the muffler attached to the exhaust pipe by means of screw threads, as shown at 6, and through which the exhaust is received into the chamber of. the mufller; 7, represents the 4the flat surfaces of the rings, so that and are intendedl to rings or sections out of which the main body of the muflier is constructed, 8 represents the projections on the iiatsurface of the rings; 9 represents the space between the rings, 10 represents the solid head which closes the end of the muflier opposite where the exhaust is received 11 represents the bolts which pass through the heads of the muffler immediatelyfinside the rings 'or sections, binding all the parts of the muftler together 12 rep.

resents the chamber into which the exhaust is received.

The parts of the muffler are assembled by placing the rings in parallel planes one above the other, with their fiat surfaces generally separated from each other by a space comp mensurate with the height of the projection on each ring, which touches the flat surface of thenext adjoining ring. When the rings are thus assembled they form a hollow cylinder, to one end of which the solid head is adjusted, so as to close the same, and to the other end the open head is adjusted, so as to close the same except as to the opening through the head which is to receive the exhaust pipe. 'Ihe bolts are then placed in and through suitable openings in both heads and a nut screwed on to the end of the bolts, suiiiciently tight to bind the parts together and hold them in place, substantially as shown in the accompanying drawings. When thus assembled the muffler is ready for use and is attached by threading the open end thereof on to the end of the exhaust pipe.

The projections are formed .direct upon when the rings rest one on the other, a regulated and defined space of uniform width will intervene between the rings for escaping and diffusing the gases and vapors in the use of the muffler, and this uniformity of space, obtained by the projections, will effect a positive separation of one ring from adjoining rings with practically no interruption of the IOO space, thereby giving a complete clearance for escaping the gases and vapors.

The general figure of the inuiiier described is that of a hollow cylinder of a circular formation in cross section, but that form is not essential, as the cylinderI could beof any other suitable form, such assquare, rectangular or oval in cross section, in which case the rings should be square, rectangular or oval in form, which rings would make a cylinder suitable for the purposes herein sought be included under the IlO word rings wherever used herein, such rings having flat surfaces and openings, correspondmg 1n shape to the particular form of .the muffler desired to be constructed.

It is not essential that the bolts be extended down through the chamber of thecylinder on the inside of the rings as the bolts may extend on the outside of the rings through ears in the heads of the cylinder; nor is it essential that the parts be bound together by means of bolts, as rivets, clamps, or otherI tween the various rings or sections of the;

muffler, practically creating no noise what# ever. The muffler of the present invention enables, a perfect clearance to be furnished for the exhaust and by its Vuse the sound and educting noise arising from the escaping of exhaust will be deadened and minimized, and this re` sult is accomplished by the construction and arrangement of the parts composing the muffler as a whole, and the provision of the space between the surfaces of the rings. The exhaust is diffused through the various spaces between the rings in such a way as to check the force of the exhaust and kill the sound thereof and, yet, not produce or create any appreciablevback pressure upon the engine, and the smoke and gases of the exhaust are sufficiently checked and held within the muffler to cause them to become neutralized or consumed by the heat of the exhaust.

The muffler is small and of light weight 'compared with the general run of mulers, but vat the same time will be found reliable and effectual in use for the purposes intended.

What l claim as new and desire to secure by Letters Patent is:

1. ln a muffler, a casing having acircumferential wall formed of a plurality of rings, each ring having fixed projections on one face with the projections of uniform height, for the projections to ldefinitely and entirely separate the rings one from the other, the separated rings forming a casing having uniform.

spaces from end to end, and inclosing a pressureereceiving and expanding chamber for pressure from the chamber through the spaces between the rings, substantially as described.

2. ln a muffler, a casing having its circumf ferential wall formed of a plurality of flat faced rings, each ring having fixed projections on one face with the projections of unione end of the casing,

andere form height for the projectionsto definitely and entirely separate the rings one from the other, the separated rings forming a casing having uniform spaces from end to end and inclosing a pressure-receiving and expanding chamber for educting pressure from the chamber through the spaces between the rings, substantially as described.

3. ln a muffler, a casing having its circumferential wall formed of av plurality of flat faced rings, each ring having on one face a series of projections with the projections of uniform height and arranged at regular intervals apart for the projections to act and ldefinitely and entirely separate the. rings one from the other and furnish a complete clearance between the rings, the separated rings forming a casing having uniform spaces from end to end and inclosing a pressure-receiving and expanding chamber for educting pressure from the chamber through the defined spaces between ,the rings, substantially as described.

4. ln a muffler, a casing having its circumferential wall formed of a plurality of flat faced rings, each ring having on one face a series of projections with the projections of uniform height and arranged at regular intervals apart for the projections to act and delinitely and entirely separate the rings one from the other and furnish a -complete clearance between the rings, the separated rings forming a casing having uniform spaces from end to end and inclosing a pressure-receiving and expanding chamber for eductingpressure from the chamber through the defined spaces between the rings, a closing head for a head for the opposite end of the casing and having a hole for attaching the muffler in position, and clamping means retaining the rings and two heads in position, substantially as described.

5. ln a muffler, a casing having its circumferential wall formed of a plurality of rings, each ring having on one face a series of projections with the projections of uniform height and arranged at regular intervals apart for the projections to act and definitely and entirely separate therings one from the other and furnish a complete clearance between the rings, the separated rings forming a casing having uniform spaces from end to end and inclosing a pressure-receiving and expanding chamber for educting pressure from the chamber through the defined spaces between the rings, a closing head for one end of the casing, a head for the opposite end of the casing and having a hole for attaching the muffler in position, and clamping moans retaining the rings and two heads in position, substantially as described.

6.- ln a muffler, a casing having its circumferential wall formed of a plurality of flat faced rings, each ring having on one face a series of projections with the projectirms of IIO uniform height and arranged at regularin-l tervals apart for the projections to act and deiinitely and entirely separate the rings one from the other and furnish a complete clearance between the rings, the separated rings forming a casing having uniform spaces from end to end and inclosing a pressure-receiving and expanding chamber for educting pressure from the .chamber through the defined spaces between the rings, a=closing head for one end of the casing, a head for the opposite end' of the casing and having a hole for attaching the mufl'ler in position, and clamping rods extending from head to head for retaining the rings and the heads of the casing in position, substantially as described,

7. In a Inufiier, a casing having its circumferential Wall formed of a plurality of rings, each ring having on one face aY series of projections withl the projections of uniform` height and arranged at lregular intervals apart for the projections to act and definitely and entirely separate the rings one from the other and furnish a complete clearanceV betWeen'the rings, the separated rings forming a easing having uniform spaces from end to end and inclosing a pressure-receiving and expanding chamber for educting pressure from the chamber through the defined spacesy between the rings, a closing'head for one end of the casing, a head for the opposite end of the casing and having a hole for attaching the muffler in position, and clamping rods extending froin head to head for retaining the rings and the heads of the casing in posiion,

substantially as described.

WILLIAM A. WEBSTER. Witnesses:

MARGARET LEONARD, E. E. CLIPP'INGER. 

